/*
 * Copyright 2022 The Kubernetes Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

export function tryFrontmatter(
  value: string
): Pick<import('front-matter').FrontMatterResult<any>, 'body' | 'attributes' | 'bodyBegin'> {
  try {
    const frontmatter = require('front-matter')
    return frontmatter(value)
  } catch (err) {
    console.error('Error parsing frontmatter', err)
    return {
      body: value,
      bodyBegin: 0,
      attributes: {}
    }
  }
}

/** In case you only want the body part of a `markdownText` */
export function stripFrontmatter(markdownText: string) {
  return tryFrontmatter(markdownText).body
}
